Justice Kavanaugh was part of the panel that heard the original arguments in the case in the D.C. Circuit, so he recused himself from considering the petition for review. While the Supreme Court denied review, Justice Gorsuch joined by Justice Thomas filed a statement saying in part:
Because the full Court is unable to hear this case, it makes a poor candidate for our review. But for that complication, however, our intervention and a reversal would be warranted for reasons admirably explained by Judge Griffith in his dissent below and by Judge Hardiman in an opinion for the Third Circuit....
... [T]he government may minimize religious speech incidentally by reasonably limiting a forum like bus advertisement space to subjects where religious views are unlikely or rare. But once the government allows a subject to be discussed, it cannot silence religious views on that topic.... So the government may designate a forum for art or music, but it cannot then forbid discussion of Michelangelo’s David or Handel’s Messiah. And once the government declares Christmas open for commentary, it can hardly turn around and mute religious speech on a subject that so naturally invites it.